This is a regression caused by commit
54b53b60 which change the code to use
if statements instead of a switch, so the break statement should have
been changed to a continue statement.

Some ILockBytes objects will not really write changes until their Flush
method is called. Also, further optimizations to the storage implementation
will involve caching writes, which will have to be flushed at times.

These fields are needed for the MS storage implementation to load
files that were created by Wine with a block size of 4096.

Translation by Claudia Cotună and me.